| Latest years, with the continuous improvement of the degree of marketization of our country and the continuous promotion of the pace of reform, the development of China’s logistics industry is very rapid. Hazardous materials become a moving dangerous source in the way of transportation as a special cargo logistics links. According to the relevant departments of statistics,80% of China’s hazardous materials are transported through the form of road transport, and 80% of hazardous materials transport accidents occurred in the road transport as well. Once the hazardous materials transport accident happens, the harm to the personal property safety and environmental will be very serious because of the particularity of hazardous materials. Therefore, the safety of road transport of hazardous materials should not be ignored.This paper studies the optimization of logistics path in the road transport network of hazardous materials. The paper elaborates the classification and related characteristics of hazardous materials, hazardous materials warehouse management and the cause of the transport accident of hazardous materials. Meanwhile, the paper also analyzes the classification of logistics path optimization problems and concludes logistics path optimization algorithm in detail. On the basis of these theories, the optimization model of multi objective one-way and two-way hazardous materials logistics is studied and established, whose targets include the highest security, the shortest time and the least cost. In order to emphasize the particularity of hazardous materials transport, a security index P is introduced in the model. By using the fuzzy comprehensive evaluation method and analytic hierarchy process, the quantitative and qualitative methods are combined to determine the P value according to the data. Next, the paper verifies the reliability of the model method by the case of investigation data, and uses grey situation decision method to solve the problem of one way logistics path optimization model. By MATLAB programming and genetic algorithm, the question of two-way logistics path optimization model is solved. Finally, it is concluded that the model method is reasonable and feasible.This paper establishes the hazardous materials logistics path optimization model with the safety index P to give more practical significance in hazardous material logistics path optimization, thus the problem of the hazardous materials logistics path optimization can be well solved. And the transportation path can be more safety, higher efficiency and more economical. Therefore, this paper is significant to the theoretical research and practical applications. |
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